Common causes of EID sample rejection in Zimbabwe and how to mitigate them.

Early infant diagnosis (EID) of HIV provides an opportunity for early HIV detection and access to appropriate Antiretroviral treatment (ART). Dried Blood Spot (DBS) samples are used for EID of exposed infants, born to HIV-positive mothers. However, DBS rejection rates in Zimbabwe have been exceeding...

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Main Authors: Charles Chiku, Maria Zolfo, Mbazi Senkoro, Mzwandile Mabhala, Hannock Tweya, Patience Musasa, Fungai D Shukusho, Exervia Mazarura, Angela Mushavi, Douglas Mangwanya
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2019-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0210136
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author Charles Chiku
Maria Zolfo
Mbazi Senkoro
Mzwandile Mabhala
Hannock Tweya
Patience Musasa
Fungai D Shukusho
Exervia Mazarura
Angela Mushavi
Douglas Mangwanya
author_facet Charles Chiku
Maria Zolfo
Mbazi Senkoro
Mzwandile Mabhala
Hannock Tweya
Patience Musasa
Fungai D Shukusho
Exervia Mazarura
Angela Mushavi
Douglas Mangwanya
author_sort Charles Chiku
collection DOAJ
description Early infant diagnosis (EID) of HIV provides an opportunity for early HIV detection and access to appropriate Antiretroviral treatment (ART). Dried Blood Spot (DBS) samples are used for EID of exposed infants, born to HIV-positive mothers. However, DBS rejection rates in Zimbabwe have been exceeding the target of less than 2% per month set by the National Microbiology Reference Laboratory (NMRL), in Harare. The aim of this study was to determine the DBS sample rejection rate, the reasons for rejection and the possible associations between rejection and level of health facility where the samples were collected. This is an analytical cross-sectional study using routine DBS sample data from the NMRL in Harare, Zimbabwe, between January and December 2017.A total of 34 950 DBS samples were received at the NMRL. Of these, 1291(4%) were rejected. Reasons for rejection were insufficient specimen volume (72%), missing request form (11%), missing sample (6%), cross-contamination (6%), mismatch of information (4%) and clotted sample (1%). Samples collected from clinics/rural health facilities were five times more likely to be rejected compared to those from a central hospital. Rejection rates were above the set target of <2%. The reasons for rejection were 'pre-analytical' errors including labelling errors, missing or inconsistent data, and insufficient blood collected. Samples collected at primary healthcare facilities had higher rejection rates.
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spelling doaj.art-788f7d35a436440997797a2b78a328592022-12-21T22:38:53ZengPublic Library of Science (PLoS)PLoS ONE1932-62032019-01-01148e021013610.1371/journal.pone.0210136Common causes of EID sample rejection in Zimbabwe and how to mitigate them.Charles ChikuMaria ZolfoMbazi SenkoroMzwandile MabhalaHannock TweyaPatience MusasaFungai D ShukushoExervia MazaruraAngela MushaviDouglas MangwanyaEarly infant diagnosis (EID) of HIV provides an opportunity for early HIV detection and access to appropriate Antiretroviral treatment (ART). Dried Blood Spot (DBS) samples are used for EID of exposed infants, born to HIV-positive mothers. However, DBS rejection rates in Zimbabwe have been exceeding the target of less than 2% per month set by the National Microbiology Reference Laboratory (NMRL), in Harare. The aim of this study was to determine the DBS sample rejection rate, the reasons for rejection and the possible associations between rejection and level of health facility where the samples were collected. This is an analytical cross-sectional study using routine DBS sample data from the NMRL in Harare, Zimbabwe, between January and December 2017.A total of 34 950 DBS samples were received at the NMRL. Of these, 1291(4%) were rejected. Reasons for rejection were insufficient specimen volume (72%), missing request form (11%), missing sample (6%), cross-contamination (6%), mismatch of information (4%) and clotted sample (1%). Samples collected from clinics/rural health facilities were five times more likely to be rejected compared to those from a central hospital. Rejection rates were above the set target of <2%. The reasons for rejection were 'pre-analytical' errors including labelling errors, missing or inconsistent data, and insufficient blood collected. Samples collected at primary healthcare facilities had higher rejection rates.https://doi.org/10.1371/journal.pone.0210136
spellingShingle Charles Chiku
Maria Zolfo
Mbazi Senkoro
Mzwandile Mabhala
Hannock Tweya
Patience Musasa
Fungai D Shukusho
Exervia Mazarura
Angela Mushavi
Douglas Mangwanya
Common causes of EID sample rejection in Zimbabwe and how to mitigate them.
PLoS ONE
title Common causes of EID sample rejection in Zimbabwe and how to mitigate them.
title_full Common causes of EID sample rejection in Zimbabwe and how to mitigate them.
title_fullStr Common causes of EID sample rejection in Zimbabwe and how to mitigate them.
title_full_unstemmed Common causes of EID sample rejection in Zimbabwe and how to mitigate them.
title_short Common causes of EID sample rejection in Zimbabwe and how to mitigate them.
title_sort common causes of eid sample rejection in zimbabwe and how to mitigate them
url https://doi.org/10.1371/journal.pone.0210136
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